Rm1-2316 Schematic

The is a 220–240V Low-Voltage Power Supply (LVPS) board assembly, primarily used in the HP LaserJet 1018, 1020, 1020 Plus and compatible Canon models like the LBP2900 .

Here are some common failure points and basic diagnostic steps: Rm1-2316 Schematic

: Manually spin the polygon mirror with your finger (wear gloves to avoid getting oil on the glass). It should spin freely with zero friction. If it feels stiff, the motor bearings have dried out. The is a 220–240V Low-Voltage Power Supply (LVPS)

The (and its variant RM1-2316-000CN ) is a critical yet often misunderstood component in older HP and Canon laser printers. If you’re a technician, hobbyist, or printer owner, understanding this power supply board can be the key to diagnosing faults, sourcing replacements, or even repairing an otherwise functional printer. If it feels stiff, the motor bearings have dried out

Look at the PCB from which the module was removed. Trace the copper lines. Ground pins connect to a large ground plane. The input pin will have a thin trace coming from a previous stage (maybe a mixer or pre-driver). The output pin will lead to a final filter or antenna port.

Key technical specifications for the board are :

: Safely discharge the 39μF/400V capacitor. Measure continuity across its terminals. A reading near zero ohms points to a punctured primary switching transistor.